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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.